External Class 2 Supply; Requirement For Transient Surge Suppression; Group Installation And Modular Drive Systems - Emerson Unidrive M201 Installation Manual
Unidrive hs series;
unidrive m series.
frame 7 to 10
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Also See for Unidrive M201:
- User manual (204 pages) ,
- Quick start manual (62 pages) ,
- Control quick start manual (50 pages)
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6.9
External Class 2 supply
The external power supply used to power the 24 V control circuit shall be marked: "UL Class 2". The
power supply voltage shall not exceed 24 Vdc.
6.10
Requirement for Transient Surge Suppression
This requirement applies to drives with rated input voltage = 575 V, Frame Size 7 only.
TRANSIENT SURGE SUPPRESSION SHALL BE INSTALLED ON THE LINE SIDE OF THIS
EQUIPMENT AND SHALL BE RATED 575 Vac (PHASE TO GROUND), 575 Vac (PHASE TO
PHASE), SUITABLE FOR OVERVOLTAGE CATEGORY III, AND SHALL PROVIDE PROTECTION
FOR A RATED IMPULSE VOLTAGE TO WITHSTAND VOLTAGE PEAK OF 6 kV AND A CLAMPING
VOLTAGE OF MAXIMUM 2400 V.
6.11
Group Installation and Modular Drive Systems
Drives with DC+ and DC- supply connections, with 230 V or 480 V supply voltage rating, are UL
approved for use in modular drive systems as inverters when supplied by the converter sections:
Mentor MP25A, 45A, 75A, 105A, 155A or 210A range manufactured by Emerson Industrial
Automation.
Alternatively, the inverters may be supplied by converters from the Unidrive-M range manufactured
by Emerson Industrial Automation.
In these applications the inverters are required to be additionally protected by supplemental fuses.
Drives have not been evaluated for other Group Installation applications, for example where a single
inverter is wired directly to two or more motors. In these applications, additional thermal overload
protection is needed. Contact Emerson Industrial Automation for further details.
118
Unidrive M / HS Frame 7 to 10 Power Installation Guide
Issue Number: 5
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